Long range fresnel lens array for infrared motion detector system



The single FIGURE is a front elevational view of a long range fresnel lens array for infrared motion detector system showing our new design, the lens array being a flat, rectangular, thin sheet having a front surface with grooves thereon and a plain, smooth, rear surface with no ornamentation. 

The ornamental design for a long range fresnel lens array for infrared motion detector system, as shown and described. 